Filter element end cover welding and fixing device

Abstract

The utility model discloses a filter element end cover welding and fixing device. The problems that filter element end cover welding and fixing operation is tedious, and precision is insufficient are effectively solved. Comprising a left-right axial supporting ring, a filter element cylinder with a leftward opening is coaxially and rotatably connected to the supporting ring, a containing groove is coaxially formed in the filter element cylinder, a plurality of sliding grooves which are evenly distributed in the circumferential direction of the filter element cylinder and communicate with the containing groove are formed in the left end of the filter element cylinder, connecting plates are slidably connected into the sliding grooves, the left ends of the connecting plates extend out of the sliding grooves, and clamping blocks are arranged at the inner ends of the connecting plates; guide plates are arranged on the front and rear sides of the lower ends of the connecting plates respectively, inclined grooves with high left and low right are formed in the guide plates, a plurality of moving rods which are in one-to-one correspondence with the connecting plates and can move left and right are arranged in the containing groove, the moving rods are located between the two guide plates, and guide columns inserted into the inclined grooves are arranged at the front and rear ends of the moving rods respectively; the device is simple in structure, novel in conception, convenient to use and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of filter element processing, in particular to a welding and fixing device for the end cover of a filter element. Background Technique

[0002] At present, a filter element usually consists of a filter element and end covers located at both ends of the filter cartridge. An important index for evaluating the quality of the filter element is the coaxiality between the end cover and the filter element. If the coaxiality between the end cover and the filter element is too low, it is very likely to reduce the filtering effect during use, and even cause damage to the filter element, thereby resulting in economic losses or personal hazards. The end covers at both ends of the existing filter element are not the same. One end cover is provided with air outlet holes, that is, the air filtered through the filter element, and the other end cover has no air outlet holes and plays a role in fixing and supporting the filter element. Since the end covers at both ends have different usage purposes, the fixing methods are also different. The end cover with air outlet holes is clamped or thread-connected to the filter element, and the end cover without air outlet holes is welded to the filter element. When the existing end cover is welded, it is necessary to perform fixed limit to ensure the coaxiality and welding accuracy between the filter element and the end cover. During welding, the filter element and the end cover need to be respectively clamped on the fixing tooling and then welded. However, this traditional fixing method has the following defects when in use: the fixed clamping operation is cumbersome, mostly tightening multiple bolts for clamping, and after welding, it is necessary to loosen them in turn to release the fixation. At the same time, the fixing effect is not good, and the positions between the filter element and the end cover are not easy to maintain, and it is easy to have a situation where the coaxiality is not high. Content of the Utility Model

[0003] In view of the above situation, in order to make up for the deficiencies of the prior art, the purpose of the utility model is to provide a welding and fixing device for the end cover of a filter element, which effectively solves the problems of cumbersome welding and fixing operation and insufficient accuracy of the end cover of the filter element.

[0004] The technical solution it adopts is that the utility model includes a support ring in the left-right axial direction. A filter cartridge with an opening facing left is coaxially rotatably connected to the support ring. An accommodation groove is coaxially opened in the filter cartridge. A plurality of sliding grooves are opened at the left end of the filter cartridge and are evenly distributed along its circumferential direction and communicate with the accommodation groove. A connecting plate is slidably connected in the sliding groove. The left end of the connecting plate extends out of the sliding groove and a clamping block is provided at the inner end. Guide plates are respectively provided on the front and rear sides of the lower end of the connecting plate. Inclined grooves with a higher left and a lower right are opened on the guide plates. A plurality of moving rods that can move left and right and correspond to the connecting plates one by one are provided in the accommodation groove. The moving rods are located between the two guide plates and guide columns inserted into the inclined grooves are respectively provided at the front and rear ends.

[0005] Compared with the prior art, the beneficial effects of the present utility model are as follows: It can achieve the position fixation of the end cap and the filter element, ensure that the position of the end cap remains unchanged relative to the position of the filter element during welding, ensure the coaxiality of the two, avoid the reduction of the filtering effect caused by too low welding coaxiality between the end cap and the filter element, and at the same time, the operation is simple, time-saving and labor-saving. Compared with the traditional clamping tooling, only by starting the electric push rod can clamping be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 is the front isometric view of the present utility model.

[0007] Figure 2 is the full-section front isometric view of the present utility model.

[0008] Figure 3 is the sectioned front isometric view of the present utility model.

[0009] Figure 4 is the full-section right isometric view of the present utility model.

[0010] Figure 5 is the present utility model Figure 4 the enlarged view of A in

[0011] Reference numerals:

[0012] 1, support ring; 2, filter element cylinder; 3, receiving groove; 4, sliding groove; 5, connecting plate; 6, clamping block; 7, guiding plate; 8, inclined groove; 9, moving rod; 10, guiding column; 11, annular plate; 12, electric push rod; 13, bottom plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be made with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the matrix embodiments disclosed below.

[0014] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of the present utility model herein are for the purpose of describing specific embodiments only and are not intended to limit the present utility model. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0015] The following further detailed description of the specific embodiments of the present utility model will be made with reference to the accompanying drawings.

[0016] It is given by Figures 1 to 5

[0016] , including a support ring 1 in the left - right axial direction. A filter cartridge 2 with an opening facing left is coaxially rotatably connected to the support ring 1. An accommodation groove 3 is coaxially formed in the filter cartridge 2. A plurality of sliding grooves 4 are formed at the left end of the filter cartridge 2, which are evenly distributed along its circumferential direction and communicate with the accommodation groove 3. A connecting plate 5 is slidably connected in the sliding groove 4. The left end of the connecting plate 5 extends out of the sliding groove 4 and a clamping block 6 is provided at the inner end. Guide plates 7 are respectively provided on the front and rear sides of the lower end of the connecting plate 5. An inclined groove 8 with a higher left and lower right is formed on the guide plate 7. A plurality of moving rods 9 corresponding to the connecting plates 5 one - to - one and capable of moving left and right are provided in the accommodation groove 3. The moving rods 9 are located between the two guide plates 7 and guide columns 10 inserted into the inclined groove 8 are respectively provided at the front and rear ends.

[0017] In order to move the moving rods 9 left and right, a ring plate 11 slidably connected coaxially with the filter cartridge 2 is provided at the right ends of the plurality of moving rods 9. Electric push rods 12 are respectively provided on the upper and lower sides in the accommodation groove 3 and are located on the right side of the ring plate 11. The free ends of the electric push rods 12 are fixedly connected to the ring plate 11.

[0018] In order to facilitate fitting the end - cover, the inner end face of the clamping block 6 is an arc surface coaxial with the filter cartridge 2.

[0019] In order to increase the fixing effect, anti - slip sheets are provided on the inner end face of the clamping block 6.

[0020] In order to facilitate fixing the support ring 1, a support rod is provided at the lower end of the support ring 1, and a bottom plate 13 is provided at the lower end of the support rod.

[0021] When the utility model is in use, first, the filter element is inserted into the filter cartridge 2. Since most filter elements are made of elastic materials, after being inserted into the filter cartridge 2, the elastic materials will be compressed. The filter element material is extruded against the inner wall of the filter cartridge 2 to achieve fixation, preventing the filter element from shaking in the filter cartridge 2. At this time, the operator holds the end - cover to be welded and closely adheres it to the left end of the filter element, and then turns on the electric push rods 12. The two electric push rods 12 drive the ring plate 11 to move leftward, further driving the plurality of moving rods 9 to move leftward. The moving rods 9 drive the guide columns 10 to move leftward in the inclined groove 8, further driving the guide plates 7 to move inward, and then driving the plurality of connecting plates 5 to move inward in the sliding grooves 4. The connecting plates 5 drive the clamping blocks 6 thereon to move inward. After the plurality of clamping blocks 6 move inward for a certain distance, their arc surfaces contact the outer surface of the end - cover and achieve clamping and fixing;

[0022] Since the multiple clamping blocks 6 move inward synchronously, the coaxiality of the end cover will be corrected in real time. When the clamping blocks 6 completely clamp and fix the end cover, the end cover and the filter element are completely coaxial. At this time, the position of the end cover relative to the position of the filter element is fixed and coaxial. At this time, the welding device can be used to weld the connection between the filter element and the end cover. After the front side welding is completed, rotate the filter element barrel 2 to rotate the unwelded part to the front side, and then continue welding.

[0023] When all welding is completed, the electric push rod 12 is started, and the electric push rod 12 drives the annular plate 11 to move to the right, and then drives the connecting plate 5 to move outward, and the connecting plate 5 drives the clamping block 6 to move outward. After moving outward for a distance, multiple clamping blocks 6 are disengaged from the end cover, releasing the clamping fixation of the end cover, and then the entire filter element can be pulled out of the filter element barrel 2.

[0024] Compared with the prior art, the beneficial effects of the present invention are: the clamping block, filter cartridge, connecting plate, etc. provided can fix the position of the end cover and the filter element, ensure that the position of the end cover remains unchanged relative to the position of the filter element during welding, ensure the coaxiality of the two, and avoid the situation where the welding coaxiality between the end cover and the filter element is too low, resulting in reduced filtering effect. At the same time, the operation is simple, time-saving and labor-saving. Compared with traditional clamping tooling, it only needs to start the electric push rod to achieve clamping. This structure is simple, novel in conception, easy to use and highly practical.

[0025] It should be pointed out that, according to the needs of implementation, the various components described in the embodiments of the present invention can be split into more components, or two or more components or parts of components can be combined into new components to achieve the purpose of the embodiments of the present invention.

[0026] The above embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A welding and fixing device for the end cap of a filter element, comprising a support ring (1) in the left-right axial direction, characterized in that, A filter cartridge cylinder (2) with an opening facing left is coaxially and rotatably connected to a support ring (1). An accommodation groove (3) is coaxially formed in the filter cartridge cylinder (2). A plurality of sliding grooves (4) are formed at the left end of the filter cartridge cylinder (2) and are evenly distributed along its circumferential direction and communicate with the accommodation groove (3). A connecting plate (5) is slidably connected in the sliding groove (4). The left end of the connecting plate (5) extends out of the sliding groove (4) and a clamping block (6) is provided at the inner end. Guide plates (7) are respectively provided on the front and rear sides of the lower end of the connecting plate (5). An inclined groove (8) with a higher left end and a lower right end is formed in the guide plate (7). A plurality of moving rods (9) that can move left and right and correspond to the connecting plates (5) one by one are provided in the accommodation groove (3). The moving rods (9) are located between the two guide plates (7), and guide columns (10) inserted into the inclined groove (8) are respectively provided at the front and rear ends.

2. The welding and fixing device for the filter element end cap according to claim 1, characterized in that, A ring plate (11) that is coaxially and slidably connected to the filter cartridge cylinder (2) is provided at the right ends of the plurality of moving rods (9). Electric push rods (12) located on the right side of the ring plate (11) are respectively provided on the upper and lower sides in the accommodation groove (3). The free ends of the electric push rods (12) are fixedly connected to the ring plate (11).

3. A filter element end cap welding and fixing device according to claim 2, characterized in that, The inner end face of the clamping block (6) is an arc surface coaxial with the filter cartridge cylinder (2).

4. A filter element end cap welding and fixing device according to claim 1, characterized in that, Anti-slip sheets are provided on the inner end face of the clamping block (6).

5. The welding and fixing device for the filter element end cover according to claim 4, wherein, A support rod is provided at the lower end of the support ring (1), and a bottom plate (13) is provided at the lower end of the support rod.

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